vfx Maps a video-to-video VFX move onto the Pika MCP's Seedance reference-to-video , at 1080p by default (bump to 4K, or drop to 720p, only if the user asks). The user hands you a clip + the change they want; you read EVERY frame (locally extracted with ffmpeg and tiled into contact sheets) and understand the audio (speech + music + SFX + ambience), author a Seedance-faithful prompt that locks the original (face, gestures, camera move) and time-codes the change to the right beat, then re-render the same shot with the VFX baked in. One run produces one clip for one requested change. For a 4K-o…